Portion of a vehicle exterior



FIG. 1 is a perspective view of a portion of a vehicle exterior showingour new design;

FIG. 2 is a side elevational view, the opposite side elevational viewbeing a mirror image thereof; and,

FIG. 3 is a front elevational view thereof.

The heavy broken line depicts a boundary of the claimed design, and thebroken line showings of the rectangles in the center step depictenvironmental subject matter and form no part of the claimed design.

The ornamental design for a portion of a vehicle exterior, as shown anddescribed.